In this post he stated why he thought SEO was not a good idea and why he strugled with the concept of SEO. He stated that he thought PPC was a way better idea than organic SEO. He also stated that top organic results were nothing more than luck.

If you glance at Seth's success you will see that it comes from links (and other word of mouth type marketing) and not PPC ads, which makes it even more confusing to think that he would think ads are way better than SEO (which often consists of finding and creating natural citations).